Fix writing microk8s config

terraform/modules/k8s-cluster/manager-node.tf

@@ -65,10 +65,10 @@ resource "hcloud_server" "manager" {
     terraform_public_ssh_key : var.terraform_public_ssh_key,
     microk8s_channel : var.microk8s_channel,
     admin_user : var.admin_user,
-    microk8s_config : templatefile("${path.module}/templates/microk8s-config.tftpl", {
+    microk8s_config : base64encode(templatefile("${path.module}/templates/microk8s-config.tftpl", {
       node_ip : var.private_node_ips[count.index],
       api_server_domain : local.kube_api_server_domain
-    })
+    }))
   })
   shutdown_before_deletion = true
 

terraform/modules/k8s-cluster/templates/cloud-init-k8s.tftpl

@@ -19,6 +19,11 @@ package_upgrade: true
 snap:
   commands:
   - snap install kubectl --classic
+write_files:
+  - owner: root:root
+    content: "${microk8s_config}"
+    path: /var/snap/microk8s/common/.microk8s.yaml
+    encoding: base64
 runcmd:
   - printf "[sshd]\nenabled = true\nbanaction = iptables-multiport" > /etc/fail2ban/jail.local
   - systemctl enable fail2ban
@@ -41,8 +46,6 @@ runcmd:
   - sed -i '$a AllowUsers ${admin_user} terraform' /etc/ssh/sshd_config
   - curl https://packages.hetzner.com/hcloud/deb/hc-utils_0.0.4-1_all.deb -o /tmp/hc-utils_0.0.4-1_all.deb -s
   - apt install /tmp/hc-utils_0.0.4-1_all.deb
-  - mkdir -p /var/snap/microk8s/common/
-  - echo "${microk8s_config}" > /var/snap/microk8s/common/.microk8s.yaml
   - snap install microk8s --channel ${microk8s_channel}
   - mkdir -p /home/terraform/.kube
   - microk8s kubectl config view --raw > /home/terraform/.kube/config

terraform/modules/k8s-cluster/worker-node.tf

@@ -54,10 +54,10 @@ resource "hcloud_server" "worker" {
     terraform_public_ssh_key : var.terraform_public_ssh_key,
     microk8s_channel : var.microk8s_channel,
     admin_user : var.admin_user,
-    microk8s_config : templatefile("${path.module}/templates/microk8s-config.tftpl", {
+    microk8s_config : base64encode(templatefile("${path.module}/templates/microk8s-config.tftpl", {
       node_ip : var.private_worker_node_ips[count.index],
       api_server_domain : local.kube_api_server_domain
-    })
+    }))
   })
   shutdown_before_deletion = true
 

terraform/outputs.tf

@@ -1,6 +1,9 @@
 output "ansible_inventory" {
   value = templatefile("${path.module}/templates/inventory.tftpl", {
-    devops      = hcloud_server.server_devops.ipv4_address,
-    k8s_servers = concat(tolist([hcloud_server.server_k8s_test.ipv4_address]), module.test_cluster.node_ipv6_addresses)
+    devops = hcloud_server.server_devops.ipv4_address,
+    k8s_servers = concat(
+      tolist([hcloud_server.server_k8s_test.ipv4_address]),
+      #      module.test_cluster.node_ipv6_addresses
+    )
   })
 }